Wiring question 2001 Chevy Tahoe

I need to replace the multi-function switch (turn signal/headlight dimmer/wiper/cruise/4-way flasher) on the steering column due to the 4-way flasher switch not working (it works if the stem is pushed to one side but will not stay on). I have the new switch $194! And have removed all covers steering column, knee bolster and metal plate to access the connectors. There are two multi-terminal connectors and one 2-wire connector. My Haynes manual says to pull the connectors apart but doesn't mention how. There seems to be some kind of catch holding the multi-terminal connectors in place. I don't want to break anything by pulling too hard on the wires or the terminal strip. How do I disconnect these terminal strips?